40 öre, type I
1920-07-01--1921-06-30 Domestic special delivery letter, single rate
Letter fee 20 öre (1920-07-01--1922-00-30)
Express fee 20 öre (1887-07-01--1921-06-30)

60 öre, type I
1920-07-01--1921-06-30 Domestic special delivery reg cover, single rate
Letter fee, 20 öre (1920-07-01--1922-09-30)
Reg fee 20 öre ( 1920-07-01--1948-03-31)
Special delivery fee, 20 öre (1887-07-01--1921-06-30)